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Global gyrokinetic simulations of ITG turbulence in the configuration space of the Wendelstein 7-X stellarator

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 نشر من قبل Alejandro Banon Navarro
 تاريخ النشر 2020
  مجال البحث فيزياء
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We study the effect of turbulent transport in different magnetic configurations of the Weldenstein 7-X stellarator. In particular, we performed direct numerical simulations with the global gyrokinetic code GENE-3D, modeling the behavior of Ion Temperature Gradient turbulence in the Standard, High-Mirror, and Low-Mirror configurations of W7-X. We found that the Low-Mirror configuration produces more transport than both the High-Mirror and the Standard configurations. By comparison with radially local simulations, we have demonstrated the importance of performing global nonlinear simulations to predict the turbulent fluxes quantitatively.



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